Method for uninstalling Oracle8 / i under Windows
1. Stop all of Oracle service in the control panel
2 Delete hkey_local_machine / Software / Oracle in the registry
3 Delete HKEY_LOCAL_MACHINE / SYSTEM / CURRENTCONTROLSET / SERVICES under the registry
4 Delete Start-Oracle program group in the program
5 Delete: / ORANT directory
6 Search Delete Oracle.ini ORADIM80.INI
These still don't go in, it will be completed when you reinstall it, you must also
C: / program files / oracle / directory delete or change nature, as long as it is a c: / program files / oracle / inventory directory, it is used to save installation information, he will automatically detect when installing, I have tried, renamed or delete it .